switch from Twinview to regular without restarting X?

[Rick Reynolds <rick@rickandviv.net>]

I'm pretty sure I saw a topic like this go by within the last couple of 
months, but I couldn't find it.  Apologies for any repeating, and feel 
free to just point me to an older thread for answers (of course).

I'm running on a laptop with nvidia drivers (1.0-8174).  I have Twinview 
working very well, along with the ability to suspend (so that I can 
remove the laptop from the port replicator without powering down).  
However, when I do that, I want to switch from Twinview to regular mode 
(so I get more than half my screen!).

I think the simplest way to accomplish it would be to switch 
TwinViewOrientation between RightOf (for dual screens) to Clone.  Is 
there any way to do this without stopping and restarting X?  If I have 
to stop and restart X (and restart all my apps at that point) there 
really isn't much advantage over just powering down and back up again 
(except for a small speed increase).

Thanks,
Rick Reynolds
--
Proper treatment will cure a cold in seven days, but left to itself, a 
cold will hang on for a week. -- Darrell Huff